diff --git a/templates/repo/issue/view_title.tmpl b/templates/repo/issue/view_title.tmpl
index c1dd265..9a573ce 100644
--- a/templates/repo/issue/view_title.tmpl
+++ b/templates/repo/issue/view_title.tmpl
@@ -16,6 +16,9 @@
 			{{if and (or .HasIssuesOrPullsWritePermission .IsIssuePoster) (not .Repository.IsArchived)}}
 				<button id="edit-title" class="ui small basic button edit-button not-in-edit{{if .Issue.IsPull}} gt-mr-0{{end}}">{{.locale.Tr "repo.issues.edit"}}</button>
 			{{end}}
+			{{if and (eq .Repository.Name "nix") (eq .Repository.OwnerName "NixOS")}}
+				<a role="button" class="ui small basic button" href="https://github.com/NixOS/nix/issues/{{.Issue.Index}}">{{svg "octicon-mark-github"}} Open upstream</a>
+			{{end}}
 			{{if not .Issue.IsPull}}
 				<a role="button" class="ui small green button new-issue-button gt-mr-0" href="{{.RepoLink}}/issues/new{{if .NewIssueChooseTemplate}}/choose{{end}}">{{.locale.Tr "repo.issues.new"}}</a>
 			{{end}}